US3736974A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tire having bead wires tangent to one another
Assignee: Compagnie Generale des Etablissements Michelin SCA
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Filing: 1971-03-10
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Granted: 1973-06-05
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Expires: 1991-03-10
Abstract
Abstract A tubeless radial truck tire is formed with an assembly of three bead wires in each bead around which the ends of the carcass ply or plies are wound. The bead wires are braided and of circular cross section and in each bead each bead wire is tangent to the other two.
Inventors
- 👤 D Lejeune
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:51
CPC Classifications
B; B60; B60C; B60C15/00; B60C15/04; B60C15/05; Y; Y10; Y10T; Y10T152/00; Y10T152/10; Y10T152/10495; Y10T152/10819; Y10T152/10846
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
76 words
A tubeless tire comprising a pair of beads, at least one carcass ply, and an assembly of three bead wires in each bEad, an end of said carcass ply being wound around each assembly of bead wires, at least two of the three bead wires in each bead being made of steel, of braided construction, and of circular cross section, and each of the three bead wires in each bead being tangent to the other two.
Claim 2
Dependent Claim
76 words
A tubeless tire comprising a pair of beads, at least one carcass ply, and an assembly of three bead wires in each bEad, an end of said carcass ply being wound around each assembly of bead wires, at least two of the three bead wires in each bead being made of steel, of braided construction, and of circular cross section, and each of the three bead wires in each bead being tangent to the other two.
Claim 3
Dependent Claim
45 words
A tubeless tire according to claim 1 wherein two of said bead wires in each bead adjacent to the base of the bead are tangent to an imaginary surface substantially parallel to the surface on which the base of the bead is intended to rest.
Claim 4
Dependent Claim
50 words
A tubeless tire according to claim 1 wherein two of said bead wires in each bead adjacent to the base of the bead are tangent to an imaginary conical surface whose axis coincides with the axis of the tire and the half-angle of the vertex of which is substantially 15*.
Claim 5
Dependent Claim
25 words
A tubeless tire according to claim 1 wherein each of said three bead wires in each bead is of the same structure and cross section.
Claim 6
Dependent Claim
91 words
A tubeless tire comprising a pair of beads, at least one carcass ply, and an assembly of three substantially inextensible steel bead wires in each bead, an end of said carcass ply being wound around each assembly of bead wires, each of the three bead wires in each bead being braided, of circular cross section, and tangent to the other two, two of said three bead wires in each bead being of the same structure and cross section and the third bead wire in each bead having a larger cross section.
Claim 7
Dependent Claim
91 words
A tubeless tire comprising a pair of beads, at least one carcass ply, and an assembly of three substantially inextensible steel bead wires in each bead, an end of said carcass ply being wound around each assembly of bead wires, each of the three bead wires in each bead being braided, of circular cross section, and tangent to the other two, two of said three bead wires in each bead being of the same structure and cross section and the third bead wire in each bead having a larger cross section.
Claim 8
Dependent Claim
90 words
A tubeless tire comprising a pair of beads, at least one carcass ply, and an assembly of three substantially inextensible steel bead wires in each bead, an end of said carcass ply being wound around each assembly of bead wires, each of the three bead wires in each bead being braided, of circular cross section, and tangent to the other two, and each of said three bead wires in each bead having a structure and cross section different from those of the other two bead wires in the same bead.
Claim 9
Dependent Claim
90 words
A tubeless tire comprising a pair of beads, at least one carcass ply, and an assembly of three substantially inextensible steel bead wires in each bead, an end of said carcass ply being wound around each assembly of bead wires, each of the three bead wires in each bead being braided, of circular cross section, and tangent to the other two, and each of said three bead wires in each bead having a structure and cross section different from those of the other two bead wires in the same bead.
Claim 10
Dependent Claim
108 words
A tubeless tire comprising a pair of beads, at least one carcass ply, and an assembly of three substantially inextensible steel bead wires in each bead, an end of said carcass ply being wound around each assembly of bead wires, each of the three bead wires in each bead being braided, of circular cross section, and tangent to the other two, and each of said three bead wires in each bead having a structure and cross section different from those of the other two bead wires in the same bead, the cross section of each bead wire in each bead being proportional to the force which it withstands.
Claim 11
Dependent Claim
108 words
A tubeless tire comprising a pair of beads, at least one carcass ply, and an assembly of three substantially inextensible steel bead wires in each bead, an end of said carcass ply being wound around each assembly of bead wires, each of the three bead wires in each bead being braided, of circular cross section, and tangent to the other two, and each of said three bead wires in each bead having a structure and cross section different from those of the other two bead wires in the same bead, the cross section of each bead wire in each bead being proportional to the force which it withstands.
Claim 12
Dependent Claim
107 words
A tubeless tire comprising a pair of beads, at least one carcass ply, and an assembly of three bead wires in each bead, an end of said carcass ply being wrapped around each assembly of bead wires, two bead wires in each bead being made of steel and being braided and of circular cross section, the third bead wire in each bead being formed of a rigid, nonmetallic material, and two of said bead wires in each bead adjacent to the base of the bead being tangent to an imaginary surface substantially parallel to the surface on which the base of the bead is intended to rest.
Claim 13
Dependent Claim
107 words
A tubeless tire comprising a pair of beads, at least one carcass ply, and an assembly of three bead wires in each bead, an end of said carcass ply being wrapped around each assembly of bead wires, two bead wires in each bead being made of steel and being braided and of circular cross section, the third bead wire in each bead being formed of a rigid, nonmetallic material, and two of said bead wires in each bead adjacent to the base of the bead being tangent to an imaginary surface substantially parallel to the surface on which the base of the bead is intended to rest.
Claim 14
Dependent Claim
15 words
A tubeless tire according to claim 8 wherein said rigid, nonmetallic material is hard rubber.
Claim 15
Dependent Claim
14 words
A tubeless tire according to claim 8 wherein said rigid, nonmetallic material is plastic.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-06-04 | 1976-12-04 | 1977-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-04 | 1980-12-04 | 1981-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-04 | 1984-12-04 | 1985-06-05 | $7700.00 | Window Closed / Lapsed |